qessner



3 Sheets-Sheet 1,

(No Mirdel.)

"E. GESSNER. CLOTH NAPPING-MAGHINE.

Patented Dec. 26, 1893.

alffw'neyes (No Model.) 3 Sheets-Sheet 2, E. GESSNER.

ULOTH NAPPING MACHINE.

Patente Dec; 26

3 Sheets-Sheet 3.

E. GESSNER CLOTH. N,MHPI BTGv MACHINE.

(No Model.)

No; 511,609. Patented Dec. 26, 1893.

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ERNST GESSNER, OF AUE, GERMANY.

CLOTH-MAPPING MACHINE.

SPECIFICATION forming part of Letters Patent No. 511,609, dated December 26, 1893.

Application filed September 22, 1891. Serial No. 406,454. (Nu model.) Patentedin Belgium July 18,1891, No. 91,313; in France November 14,1890,No. 207,403; in England May 29. 1891, No. 9,096, and in Austria-Hungary July 25,1891, No. 10,252.

To aZZ whom it may concern.-

Be it known that I, ERNST GEssNER, residing at Aue, Saxony, Germany, have invented a new and useful linprovementin Cloth-\ apping Machines, (for which Letters Patent have already been granted to me in the following countries, viz: Belgium, No. 91,313, dated July 18, 1890; France, No. 207,423, dated November 29, 1890; Great Britain, No. 9,096, dated May 29, 1891, and Austria-Hungary, No. 10,252, dated July 25, 1890,) of which the following is a specification.

My invention relates to improvements in cloth napping machines in which teaseling rollers are arranged around a drum and revolve by the rotation of the drum, said rollers constituting two alternating series revolving at different speeds and having teeth working in different directions. The said teaseling rollers may be covered with different means for the purpose of giving a teaseling effect on the cloth; but are generally provided with cards having their points turned in opposite directions corresponding to the different movements of the two series of rollers. The teaselingrollers require to be cleaned or stripped by brushes while the drum is rotated. According to the different motions of the two series of teaseling rollers these brushes require to be moved in different directions and at a higher speed than the rollers to be stripped. The cleaning brushes must be arranged so as to strip alternately a teaseling roller of one, and a roller of the other series, being moved in such a manner as to correspond with the direction of the movement of the rollers to be stripped.

The object of my invention is to provide a new cleaning device to meet the requirements before mentioned, a cleaning brush applied in the ordinary way being unfit for this purpose.

My invention consists of two cleaning brushes arranged outside the drum and having two different movements or motionsin opposite directions arranged so that each brush will strip the alternate series of teaselin g rollers as hereinafter fully described.

In the accompanying drawings in Figures 1 to 7 several arrangements of teaseling rollers are shown in section, with my cleaning devices in various modifications in whichI propose to carry out my invention.

Fig. 1 shows the drum D of a cloth napping machine around which two series of teaseling rollers A and B are arranged; the rollers of series B have the points of their card teeth set in one direction while, those of series A have their card teeth set in the opposite direction. The drums and rollers revolve as indicated by arrowsin the several figures. M and N are cleaning rollers arranged below the drum, each having the half of its circumference covered with bristles, wire brushes or any other stripping material. Motion is imparted to the cleaning rollers through a wheel Rsecured to the shaft of the drum,by wheels R R R and R whereby the cleaning roller M is rotated in the direction of the movement of the drum, and so that during each revolution its bristle covered part is coming in contact with one of the teaseling rollers A for the purpose of cleaning the same, while one of the rollers B, following next, is passing by the uncovered part or bare space of the cleaning roller M untouched. The cleaning roller N, on the contrary, revolving in the opposite way, passes by the rollers of series A without touching them, While its bristle covered part is cleaningthe rollers of series B.

Instead of having one half of the cleaning rollers covered with bristles, their circumference may be divided or parted into several strips of bristles and corresponding bare spaces, as for instance shown in Fig. 2 it be ing understood that in any case the velocity of the cleaning rollers will be such, as to bring each strip of bristles into contact with one roller of one series, while the next following roller of the other series is passing by the corresponding bare space of the same cleaning roller.

In Fig. 2 each of the two cleaning rollers M and N is provided with bristles forming two strips each strip covering one quarter of the circumference of the cleaning roller. The

roller R and pulleys R and R of bristles of the cleaning roller M strips one teaselin g roller of series B while the rollers of series A are cleaned by cleaning roller I. In order to prevent the belt from slipping, it is provided with holes t at equal distances apart, the pulleys R, R and R having projecting pins 25 passing through said holes. Instead of a belt, and endless perforated steelblade, or a chain may be employed to attain the same result. In case series A comprises a greater-number of teaselin g rollers than series B, or vice versa, the width of the strips of bristles on the surface of the two cleaning rollers Maud N must be in proportion to the number of teaseling rollers to be cleaned of each cleaning roller in succession.

In Fig. 3 for instance, one teaseling roller B is interposed between two and two of series A. The cleaning roller M therefore is to clean two rollers of series A in succession, whereas cleaning roller N cleans only one roller of series B; accordingly the cleaning roller M is provided with ,bristles on two thirds of its surface while cleaning roller N is covered therewith only on one third.

Fig. 4 shows the two cleaning rollers M and N covered with bristles on the whole of their circumference, and journaled at both ends of the frame in rocking levers G having their fulcrum upon shaft H. The outer end of said rocking lever is formed with a slot P, in which an eccentric E plays, the eccentric being fast upon the shaft H which derives motion from the drum by gear wheels R and B. By the motion of the shaft H and by means of the eccentric E sliding inv the slot P, the rocking levers G receive a swinging or rocking motion, whereby the cleaning rollers M and N are raised and lowered, being alternately brought into and out of contact with the teaseling rollers; rollerM cleans the teaseling rollers of series A, and roller N those of series B. A rotary motion is given to the cleaning rollers by means of a belt T passing around the pulleys R R and R so that the cleaning roller M is caused to rotate in the opposite direction to cleaning roller N. Instead of an eccentric, the swinging motion of the two cleaning rollers may be produced by a roller F as shown in dotted lines which is drawn or forced against the belt T lying around the pulleys of the teaseling rollers by a spiral spring 0. The belt T as it lies around the pulleys of the teaseling rollers, forms a regular polygon havingrounded corners. By the rotation of the drum the roller F is moved to and fro being forced outwardly by the rounded corners of the polygon formed by .the pulleys, and drawn by the spiral spring 0 toward the center of the drum when it comes between two pulleys, whereby the cleaning rollers receive a swinging motion so as to be brought alternately into and out of con tact with the teaseling rollers. Instead of having the roller F to traverse the belt lying around the pulleys of the teaseling rollers,

there may beemployed a cam way W, as shown in Fig. 5. The said cam way is formed with regular curves and is secured to the side frame of the drum. Upon this cam way the roller F travels in a similar manner to that last described, being drawn toward the center of the moved alternately to and fro, the roller M is stripping the teaseling rollers of series A, and roller N those of series B. Besides the reciprocating motion of the cleaning rollers, their rotary motion in opposite d1rect1on 1s caused by a beltT passing round the pulleys R R and R and tension roller B In cases when the teaseling rollers are not 'all arranged on the same circumference, but are arranged with their peripheries in two circles; one of the same coinciding with the periphery of the drum, and the other arranged either some distance back from the outer circumference of the drum or projecting beyond the same, two different cleaning rollers may be employed, one of which is fully covered with bristles and the other provided with 'strlps of bristles.

Fig. 7 shows the rollers of series A arranged in a circle with the peripheries ofth e rollers projecting beyond the periphery of the'drum while the rollers of series B are arranged at some distance back from the outer "CIIGU-mfully covered with bristles and m'ounted in'a fixed position, serves for cleaning the 'outer rollers of series A, while the strips of cleaning roller N are coming in contact wlth the teaseling rollers of series B only-. I Both'cl'eaning rollers are driven in opposite directions to each other by the belt T, passing over pulleys R R R and tension roller R The belt is provided with holes 15 at equal d stances apart and the pulleys R and R w1t h projecting pins 25 protruding through sa d holes, to prevent the belt from slipping. Instead of using one belt only, each of the two cleaning rollers may be driven separately by its own belt as indicated in dotted l 1n'es.

Having thus described my invention, what I claim, and desire to secure by Letters Patent is 1: In a cloth napping machine, the combi nation with a drum, and two series of teaseling-rollers having teeth pointing alternately in opposite directions of two cleaning rollers running in opposite directions to each other, each of the said cleaning rollers stripping one series of teaseling rollers, substantially as described.

'ference of the drum. A cleaning roller M 2. In a cloth napping machine, the combination with a drum, and two series of teaseling rollers having teeth pointing alternately in opposite directions of two cleaning rollers running in opposite directions to each other being covered with strips of bristles, Wire brush or other stripping material and each revolving at a certain speed in proportion to that of the drum so as to strip one series of teaseling rollers running in conformity with its own back or forward movement, substantially as described.

3. In a cloth napping machine, the combination with a drum, and two series of teaseling rollers having teeth pointing alternately in opposite directions of two cleaning rollers running in opposite directions to each other and jonrnaled in a lever which is moved to and from the drum at certain intervals, so that each cleaning roller meets one series of teaseling rollers running in conformity with its own back and forward movement, substantially as described.

4. In a cloth napping machine, the comb1- nation with a drum, and two series of teaseling rollers having teeth pointed alternately in opposite directions and forming two circles arranged at dilferent distances from the center of the drum, of the two cleaning rollers running in opposite directions to each other, one of the said cleaning rollers stripping the teaseling rollers arranged on the outer circle, while the other cleaning roller is acting so as to meet the other series of teaseling rollers arranged on the inner circle, so that each cleaning roller strips one series of teaseling rollers running in conformity with its own back or forward movement, substantially as described.

ERNST GESSNER. lVitnesses:

ALFRED NOEZOLD, EMIL FALKE. 

